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Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
Salmonflies
Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

Dorsal view of a Glossosoma (Glossosomatidae) (Little Brown Short-horned Sedge) Caddisfly Larva from the Yakima River in Washington
I caught this tiny larva without a case, but it seems to key pretty clearly to to Glossosomatidae. From there, the lack of sclerites on the mesonotum points to either Glossosoma or Anagapetus. Although it's difficult to see in a 2D image from the microscope, it's pretty clear in the live 3D view that the pronotum is only excised about 1/3 of its length to accommodate the forecoxa, not 2/3, which points to Glossosoma at Couplet 5 of the Key to Genera of Glossosomatidae Larvae.
27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

FredH
FredH's profile picture
Lake Charles , Louisiana

Posts: 108
FredH on Oct 19, 2009October 19th, 2009, 1:52 am EDT
What would you say is the nymph that would be in most fishermens fly box. And what insect is it an immitation of?
Fred
Taxon
Taxon's profile picture
Site Editor
Plano, TX

Posts: 1311
Taxon on Oct 19, 2009October 19th, 2009, 4:04 am EDT
Hi Fred,

For streams in the Pacific Northwest, I would say Prince Nymph, which imitates a stonefly nymph.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
Flatstick96
Flatstick96's profile picture
Posts: 127
Flatstick96 on Oct 19, 2009October 19th, 2009, 5:26 am EDT
If I had to guess at the nymph that you would be most likely to find in most peoples' boxes, I'd guess Hare's Ear.

As to what it imitates: lots of things, really.

And yes, I've seen people catch fish in the Guad. on Hare's Ear nymphs. :-)
UPTroutBum
Marquette, MI

Posts: 33
UPTroutBum on Oct 19, 2009October 19th, 2009, 5:34 am EDT
Hare's Ear, Pheasant tail, & Prince. I have many in bead head and non bead head.
" The true fisherman approaches the first day of fishing season with
all the sense of wonder and awe of a child approaching Christmas." John Voelker
Troutnut
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Administrator
Bellevue, WA

Posts: 2758
Troutnut on Oct 19, 2009October 19th, 2009, 4:47 pm EDT
Yep: Hare's Ear, Pheasant Tail, and Prince would be the ones in the most fishermens' fly boxes, I think. Probably in that order, although PT might be first.

I was a little confused by the question, though: "most imitated" would be asking about the actual insects, but "in the fly boxes" would be asking about the flies. Everyone's answered the latter.

The former is harder; it depends how broad a category you want to look at. For a single species, it's probably the Hendrickson nymph. For a family, probably Baetidae (BWO) nymphs.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
Lastchance
Portage, PA

Posts: 437
Lastchance on Oct 20, 2009October 20th, 2009, 11:20 am EDT
I'd say PT, hare's ear and prince nymph.
Bruce
Teddyp
North Carolina

Posts: 18
Teddyp on Oct 21, 2009October 21st, 2009, 9:42 am EDT
I'm in the same boat. Gotta be Hare's ear and PT. Don't know many without those in the fly box.

Ted

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